00690nam 2200169z- 450 9910712478603321(CKB)5470000002493354(EXLCZ)99547000000249335420230509c1984uuuu -u- -engBlood lead levels for persons ages 6 months-74 years : United States, 1976-80U.S. Department of Health and Human Services, Public Health Service, National Center for Health StatisticsHyattsville, MdBlood lead levels for persons ages 6 months-74 years BOOK9910712478603321Blood lead levels for persons ages 6 months-74 years : United States, 1976-803274737UNINA